PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/13-15:13:10
G10     270.3          40.5                7.2 +/-    1.61      10.4 +/-    1.61  0.040 / 0.040
G13     40.5           15.7                4.6 +/-    2.72      11.3 +/-    2.72  0.050 / 0.040
G15     57.1           47.8                4.2 +/-    0.33       5.4 +/-    0.33  0.070 / 0.090
G16     278.0          11.1                5.4 +/-    1.74      14.7 +/-    1.74  0.060 / 0.080
G20     303.5          61.6                5.0 +/-    0.70       5.7 +/-    0.70  0.140 / 0.400
G21     22.3           74.2                5.5 +/-    0.41       5.7 +/-    0.41  0.140 / 0.470
G24     113.7          16.3                8.1 +/-    0.78      19.6 +/-    0.78  0.090 / 0.180
G27     318.5          18.9                4.0 +/-    2.33       9.1 +/-    2.33  0.080 / 0.200
G29     167.1          26.9                7.7 +/-    1.30      14.4 +/-    1.30  0.100 / 0.140
G32     204.9          10.9               -9.5 +/-   34.56     -26.1 +/-   34.56  0.100 / 0.210